A popular guide to minerals : with chapters on the Bement Collection of minerals in the American Museum of Natural History, and the development of mineralogy . WILLEMITE Sterling, Sussex Co., N. J. Bement Collection, American Museum of Natural History. WILLEMITE Sterling Hill, N. Collection, American Museum of Natural History DEVELOPMENT OF MINERALOGY 207 tires. He insists that the eye wearied of other study is refreshedby the aspect of the emerald, which overcomes its lassitude by itslenient verdancy, that it remains unchang-ed in sunlight, inshadow, translucent even when thick, as i
A popular guide to minerals : with chapters on the Bement Collection of minerals in the American Museum of Natural History, and the development of mineralogy . WILLEMITE Sterling, Sussex Co., N. J. Bement Collection, American Museum of Natural History. WILLEMITE Sterling Hill, N. Collection, American Museum of Natural History DEVELOPMENT OF MINERALOGY 207 tires. He insists that the eye wearied of other study is refreshedby the aspect of the emerald, which overcomes its lassitude by itslenient verdancy, that it remains unchang-ed in sunlight, inshadow, translucent even when thick, as is the quality of attempts to separate twelve varieties, but it is admitted thatmost of these were plasmas, malachite or chrysocolla. Old au-thors have held that the ancients were unacquainted with theemerald, but, as King maintains, such keen and adroit recognitionof the characteristics of the gem as shown by Pliny leaves littledoubt that he was discussing this mineral. As a matter of fact, we know that the ancients possessed thisgem, though it was regarded for a long time as unknown previousto the discovery of America, and the Scythian stones first mentionedby Pliny, may have been derived from the Ural or Altai mountains,which have
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmineral, bookyear1912
